よ
yo
Putting it in their hand: よ
The picture You hold something the other person doesn't have and push it across to them. A gentle push is a kindness; a hard shove is shoving it in their face.
Where the picture shows up in よ
-
passing over what they missed
財布、落ちましたよ。
saifu, ochimashita yo
Excuse me — you dropped your wallet.
The opposite of ね: use よ only when you assume they don't already know.
-
passing over your intention
私がやりますよ。
watashi ga yarimasu yo
I'll do it, leave it to me.
-
passing over your certainty
大丈夫ですよ。
daijoubu desu yo
It's fine, honestly — don't worry.
-
the hard shove
早くしてよ。
hayaku shite yo
Come on, hurry up.
The same よ turns rude when pushed hard. Saying 違いますよ to a senior sounds like you're lecturing them.